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%I #17 Sep 26 2019 02:40:25
%S 1,4,64,960,14112,206976,3051520,45340672,679088128,10244538368,
%T 155497791488,2372333207552,36346971717632,558853784207360,
%U 8618409948348416,133250263847796736,2064775104923041792,32056922218818961408,498560128589437599744
%N Expansion of g.f. sqrt(V(x)), where V(x) = Sum_{n >= 0} A065409(n)*x^n.
%F a(n) ~ 2^(4*n + 1/2) / (Pi * sqrt(n)). - _Vaclav Kotesovec_, Sep 26 2019
%t CoefficientList[Series[Sqrt[HypergeometricPFQ[{-1/2, 1/2}, {1}, 32*x - 256*x^2]/(1 - 16*x)], {x, 0, 20}], x] (* _Vaclav Kotesovec_, Sep 26 2019 *)
%Y Cf. A065409, A046105, A060042.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, following a suggestion of _Peter J Larcombe_, Jan 16 2004
%E More terms from _Sean A. Irvine_, Sep 25 2019
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